diff --git a/src/Servers/Kestrel/Core/test/HeartbeatTests.cs b/src/Servers/Kestrel/Core/test/HeartbeatTests.cs
index 02062e71f00b..5d027529f53c 100644
--- a/src/Servers/Kestrel/Core/test/HeartbeatTests.cs
+++ b/src/Servers/Kestrel/Core/test/HeartbeatTests.cs
@@ -20,7 +20,6 @@ public void HeartbeatIntervalIsOneSecond()
     }
 
     [Fact]
-    [QuarantinedTest("https://github.com/dotnet/aspnetcore/issues/55297")]
     public async void HeartbeatLoopRunsWithSpecifiedInterval()
     {
         var heartbeatCallCount = 0;